The answer would be D how are the trails used
It is not about 36,000 because
about would be 3,600 or higher
the sum of supplementary angles is 180 degree
therefore
x +2x = 180°
3x = 180
X = 180/3 = 60°
the value of X is 60°
Che set amount by A+ Fence company would be around $140 per foot